大约有 15,630 项符合查询结果(耗时:0.0276秒) [XML]

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LINQ: Not Any vs All Don't

...TSource, bool> predicate) { if (source == null) { throw Error.ArgumentNull("source"); } if (predicate == null) { throw Error.ArgumentNull("predicate"); } foreach (TSource current in source) { if (!predicate(current)) { re...
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Array extension to remove object by value

However, I get an error on var index = find(self, object) 15 Answers 15 ...
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Sequence contains no elements?

... From "Fixing LINQ Error: Sequence contains no elements": When you get the LINQ error "Sequence contains no elements", this is usually because you are using the First() or Single() command rather than FirstOrDefault() and SingleOrDefault()....
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How to copy a row and insert in same table with a autoincrement field in MySQL?

... Looks nice, but when I run the first query in MySQL, I get Error Code: 1113. A table must have at least 1 column. – physicalattraction Aug 30 '16 at 15:44 3 ...
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No output to console from a WPF application?

...Console) { AllocConsole(); InvalidateOutAndError(); } //#endif } /// <summary> /// If the process has a console attached to it, it will be detached and no longer visible. Writing to the System.Console is still possible, but no output...
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Precise Financial Calculation in JavaScript. What Are the Gotchas?

...y integer arithmetic in floating-point is exact, so decimal representation errors can be avoided by scaling1. Note that while the set of real numbers is infinite, only a finite number of them (18,437,736,874,454,810,627 to be exact) can be represented exactly by the JavaScript floating-point format...
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How to set warning level in CMake?

... target_compile_options(${TARGET_NAME} PRIVATE -Wall -Wextra -pedantic -Werror) endif() My colleague suggested an alternative version: target_compile_options(${TARGET_NAME} PRIVATE $<$<CXX_COMPILER_ID:MSVC>:/W4 /WX> $<$<NOT:$<CXX_COMPILER_ID:MSVC>>:-Wall -Wextra -...
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Redirect using AngularJS

... on firefox (30~) console fires an error that $apply cycle is busy – svarog Jan 28 '15 at 20:11 1 ...
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Change Schema Name Of Table In SQL

... + '].' + @table to make sure some special words/characters does not cause error. – Stoinov Nov 15 '18 at 11:56 add a comment  |  ...
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What is the most effective way for float and double comparison?

...ed by the majority of programmers. Floating point is always about relative errors, since it is floating point (not fixed point). So it will never correctly work with a fixed error (epsilon). – user2261015 Apr 13 '17 at 7:58 ...